GHM Delta OHM HD2013 Page 2 Operating Manual Download

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HD2013

- 2 -

V1.6

TABLE OF CONTENTS

INTRODUCTION .................................................................................................... 3

TECHNICAL SPECIFICATIONS ............................................................................... 4

INSTALLATION ..................................................................................................... 7

3.1

LECTRICAL CONNECTIONS

..................................................................................... 7

3.2

ONFIGURATION OF ANALOG OUTPUT

....................................................................... 10

3.3

IPPING BUCKET

................................................................................................ 11

3.4

NSTALLATION MODES

......................................................................................... 12

SERIAL COMMANDS ............................................................................................ 15

SDI-12 PROTOCOL .............................................................................................. 21

MAINTENANCE .................................................................................................... 28

INSTRUMENT STORAGE ...................................................................................... 29

SAFETY INSTRUCTIONS ...................................................................................... 29

ORDERING CODES .............................................................................................. 30

Summary of Contents for Delta OHM HD2013

Page 1: ...Operating manual Tipping bucket rain gauge HD2013 www deltaohm com English Keep for future reference...

Page 2: ...ATIONS 4 3 INSTALLATION 7 3 1 ELECTRICAL CONNECTIONS 7 3 2 CONFIGURATION OF ANALOG OUTPUT 10 3 3 TIPPING BUCKET 11 3 4 INSTALLATION MODES 12 4 SERIAL COMMANDS 15 5 SDI 12 PROTOCOL 21 6 MAINTENANCE 28...

Page 3: ...r The number of impulses can be de tected and recorded by a data logger e g HD2013 DB or by a pulse counter The rain gauge is available with optional analog output at choice between 4 20 mA HD2013 A o...

Page 4: ...3 up to 60 mm h 4 up to 100 mm h Version with 0 5 mm 50 mm h nominal resolution 2 3 5 in the interval 0 200 mm h The error refers to the calculation of the amount of rain using the resolution stated...

Page 5: ...resolution 0 1 mm 50 mm h as a function of the rainfall rate 0 196 0 203 0 210 0 217 0 224 0 231 0 238 0 600 500 400 100 200 300 RCn I 0 245 0 252 0 259 R 10 7 x 10 I Cn 5 0 1946 150 250 350 450 550...

Page 6: ...r Example of measurement correction Let s assume that a rain gauge with nominal resolution RN 0 204 mm 50 mm h has generated 25 pulses at the frequency of 1 pulse every 25 seconds The rainfall rate ca...

Page 7: ...he base of the rain gauge is fitted with a bubble level For installation unscrew the three screws at the base of the cylinder that supports the water collector cone Attention a heating resistor is fit...

Page 8: ...contact output and heating Connection of analog output only HD2013 A and HD2013 V Perform the connections as shown in figure 3 2 Set the SW1 switch up towards the INTERNAL indication the contact outp...

Page 9: ...e must be connected to GND To reset disconnect the line from GND and apply a direct voltage of at least 3 Vdc and lower than or equal to the power supply for at least 1 s then reconnect the line to GN...

Page 10: ...or 10 V can be as sociated with different values of rainfall The association can be implemented via hardware by using the dip switches on the circuit board or via software by connecting the serial co...

Page 11: ...bucket remove the holders as shown in fig 3 5 Fig 3 5 Locking and unlocking the tipping bucket The oscillation of the tipping bucket can be adjusted through the two threaded rods located under the bu...

Page 12: ...DISSUADER FASTENING KNOB OF THE CASING 248 COLLAR TO FASTEN THE DATALOGGER TO THE SUPPORT STAFF HD2003 77 40 DATA LOGGER HD2013 DB FASTENING AND LEVEL ADJUSTING SCREWS FLOOR HD2003 78 GROUND HD2003 7...

Page 13: ...HD2013 13 V1 6 Fig 3 8 Ground installation...

Page 14: ...HD2013 14 V1 6 Fig 3 9 Installation raised above ground...

Page 15: ...eters 9600 8N2 Note if the CP27 cable is used install the corresponding USB drivers in your PC Rain gauge with SDI 12 output The configuration is done by connecting the rain gauge SDI 12 output and se...

Page 16: ...ement of index n for the amount of rainfall n 0 mm n 1 inches Reply of the instrument if the unit of measurement is accepted if the index n is not correct Yes UR Reads the unit of measurement of the a...

Page 17: ...r inches set in the instrument Example CCW 0 42 sets 0 42 mm or 0 42 inches depending on the unit of measurement set as custom value of the resolution Reply of the instrument if the value n n is accep...

Page 18: ...ut full scale The value is considered in the unit of measurement mm or inch es set in the instrument No Printing of the measurements Command Description PWD S0 Stops the continuous printing of the mea...

Page 19: ...te Command Description PWD TE Enables the measurement correction as a function of the rainfall rate Reply of the instrument Yes TD Disables the measurement correction as a function of the rainfall rat...

Page 20: ...e corresponding to the multiplication factor of index i must be greater or equal to the rate corresponding to the multiplication factor of index i 1 Example To change the default table and implement t...

Page 21: ...ow shows the available SDI 12 commands For consistency with the doc umentation of the SDI 12 standard the instrument address is indicated in the table with the letter a The rain gauge leaves the facto...

Page 22: ...nse 0 48 9 6 The instrument with address 0 has recorded 48 emptying of the tipping bucket and the total amount of rainfall is 9 6 mm or inches depending on the set unit Note after reaching 99999 99 th...

Page 23: ...amount of rain fall today is 0 4 mm or inches depending on the set unit Reads the amount of rain fall in the current day Amount of rainfall in the previous day aM3 atttn CR LF with ttt number of seco...

Page 24: ...d the internal temperature of the rain gauge aD0 a v v t t CR LF with v v power supply voltage in V t t internal temperature in the unit of measurement set in the instrument C or F Example of response...

Page 25: ...able 3 characters n number of detected variables 1 character Note ttt 000 means that datum is immediately available Request of detection of the partial amount of rainfall aD0 a n r r CR LF with n numb...

Page 26: ...e the measure available 3 characters n number of detected variables 1 character Note ttt 000 means that data are immediately available Request of detection of the current rainfall rate aD0 a r r CR LF...

Page 27: ...rument mm or inches Reads the total amount of rainfall aR1 a n r r CR LF with n number of emptying of the tipping bucket r r partial amount of rainfall in the unit of meas urement set in the instrumen...

Page 28: ...ith CRC that require to add a 3 character CRC code at the end of the reply before CR LF The format of these commands is obtained from the previous by adding the letter C aMC aMC1 aMC2 aMC3 aMC4 aMC5 a...

Page 29: ...n and operating safety can be ensured only if all standard safety measures as well as the specific measures described in this manual are followed The instrument proper operation and operating safety c...

Page 30: ...mast with bird spikes Heating Blank not heated R heated power voltage 24 Vdc R1 heated power voltage 12 Vdc Output Blank contact A contact analog 4 20 mA V contact analog 0 10 V S contact digital SDI...

Page 31: ......

Page 32: ...rranty included in the manual of the product For any dispute the competent court is the Court of Padua The Italian law and the Convention on Contracts for the International Sales of Goods apply TECHNI...

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